Which of the following phrases INCORRECTLY completes the following statement? The Hox complexes of vertebrates
A. encode the same genes as those found in the Antennedepia and bithorax complexes.
B. follow the colinearity rule.
C. are arranged in groups of four complexes in all organisms that possess them.
D. determine the anteroposterior axis.
E. suggest there is a basic body plan that is followed by all multicellular organisms.
C. are arranged in groups of four complexes in all organisms that possess them.
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What is one concern with the use of genetically-engineered, herbicide-tolerant crops?
a. decreased yields b. potential allergic reactions c. transfer of herbicide resistance to weeds d. loss of genetic diversity e. expense of using herbicides
Which of the following is a property of all living organisms?
a. Must “fit” their environment. b. Use the sun to fuel cellular respiration. c. Grow and develop based on inherited proteins. d. Regulate a constant internal body temperature.
From which chamber of the heart does the right ventricle receive blood?
a. right atrium. b. left atrium. c. left ventricle. d. none of the above.
What is the main way that a beaver can be a keystone species in its ecosystem?
a) it can serve as a food source b) it can introduce diseases into the ecosystem c) it can act as a predator d) it can provide aquatic habitat